Vacumm leak from the inside consistent with breaks

[evangreen]

Recently noise started, sounds like a vacuum leak in the cab but i cant hear it in the engine bay. If i press the brake pedal all the way down it goes away. Brakes seem to be functioning properly.

Any help on how to fix this or where its coming from?
Thanks
Evan

[dashboardmonkey]

you need a BRAKE booster

[evangreen]

sorry for the spelling was in a rush,
so it cant be repaired? Im assuming its a leak where the pedal mechanism goes into the booster. Is there a seal or valve that can be replaced or is the booster cracked or something?

[jlevie]

Nope, you have to replace the entire booster.

[dashboardmonkey]

There is a rubber diaphragm in there that is likely torn

[Knockenwelle]

OP, I've got a booster if you need one.